2026-02-28 · 10 min read

The complete Casper testimonial email collection

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How does Casper turn customer quotes and ratings into clicks without feeling salesy? This gallery breaks down 113 real testimonial campaigns, showing how they structure proof points, handle objections, and place CTAs around reviews. Browse to spot repeatable patterns you can adapt for your own trust-building sends.

1. Try your dream bed for 100 nights. Plus, get 50% off adjustable bed frames.

1. Try your dream bed for 100 nights. Plus, get 50% off adjustable bed frames.
1. Try your dream bed for 100 nights. Plus, get 50% off adjustable bed frames.
Subject: Try your dream bed for 100 nights. Plus, get 50% off adjustable bed frames.
Objective

This email aims to drive mattress sales by highlighting Casper’s risk-free 100-night trial and pairing it with a limited-time 50% discount on adjustable bed frames to incentivize immediate purchase. It also seeks to build long-term customer engagement through product education and referral rewards.

Why this works

Casper brilliantly combines a high-trust guarantee, the 100-night trial, with a time-sensitive cross-sell offer, making the purchase feel both safe and urgent without sacrificing perceived value or customer control.

How to implement

By showcasing six distinct mattress models with clear, benefit-driven headlines and relatable lifestyle imagery, the email transforms technical product specs into emotionally resonant sleep experiences that speak directly to different customer needs and preferences.

Pro Tip

Add a subtle progress bar or countdown timer near the hero section to reinforce urgency for the 50% off adjustable bed frame offer, which currently only has a static badge that may be overlooked in longer scroll sessions. • Include a short customer testimonial or star rating directly beneath each mattress tile in the product grid to reduce decision fatigue and reinforce social proof without requiring users to click through to product pages.

Colors:
#1a3a6c
#f5f3eb
#ffd700

2. Class Announcement: Don’t miss 20% off mattresses!

2. Class Announcement: Don’t miss 20% off mattresses!
2. Class Announcement: Don’t miss 20% off mattresses!
Subject: Class Announcement: Don’t miss 20% off mattresses!
Objective

This email aims to drive immediate mattress sales by leveraging a back-to-school theme and time-sensitive discounts, while also encouraging bundle purchases and student/teacher-specific savings to broaden appeal and urgency.

Why this works

The email brilliantly ties mattress comfort to academic success by framing sleep as essential for students facing first-day jitters and finals, making the product feel like a necessary school supply rather than just furniture.

How to implement

Each mattress is presented with a clear discount badge, original price strikethrough, and monthly payment option via Affirm, reducing perceived cost and decision friction while appealing to budget-conscious shoppers.

Pro Tip

Add a countdown timer next to the 'Ends Tomorrow' alarm icon to visually reinforce urgency and prevent users from scrolling past without feeling time pressure. • Include a short testimonial or star rating under each mattress to build social proof directly where the decision is being made, especially since the hero section mentions 100K+ reviews but doesn’t show them near products.

Colors:
#E6F2FA
#2A4B8D
#FFD700

3. Night sweats? Meet Snow Technology.

3. Night sweats? Meet Snow Technology.
3. Night sweats? Meet Snow Technology.
Subject: Night sweats? Meet Snow Technology.
Objective

This email aims to convert subscribers experiencing night sweats into customers by promoting Casper’s Snow Technology mattresses and pillows during a limited-time Presidents’ Day sale, while reinforcing product credibility through social proof and media features.

Why this works

Casper brilliantly frames night sweats as a solvable problem, not just discomfort, by positioning Snow Technology as a scientific, 12-hour cooling solution that transforms sleep quality rather than just selling a mattress.

How to implement

The email leverages urgency and exclusivity by tying the discount to a holiday weekend and subscriber status, making the offer feel personalized and time-sensitive without overwhelming the reader with fine print.

Pro Tip

Add a small countdown timer beneath the Presidents’ Day sale banner to visually reinforce urgency and reduce the cognitive load of calculating the deadline, which could increase conversion for time-sensitive shoppers. • Include a short testimonial or star rating directly under each product card in the grids to build instant trust, especially for first-time buyers, since the hero section’s ‘100K+ reviews’ claim isn’t visually reinforced at the point of product decision.

Colors:
#0A1F44
#FFFFFF
#E6F2FF

4. Support? ✅ Cooling? ✅ Comfort? ✅

4. Support? ✅ Cooling? ✅ Comfort? ✅
4. Support? ✅ Cooling? ✅ Comfort? ✅
Subject: Support? ✅ Cooling? ✅ Comfort? ✅
Objective

This email aims to drive immediate mattress and bundle purchases by highlighting a time-sensitive 4th of July sale with up to 35% off mattresses and 40% off bundles, while reinforcing Casper’s value proposition of tailored comfort, cooling, and support for every sleeper.

Why this works

Casper brilliantly frames its mattresses as personalized sleep solutions by pairing each model with specific benefits like '2x the cooling features' or 'pressure-relieving foams,' helping shoppers self-identify the right fit without overwhelm.

How to implement

The email leverages urgency with a bold 'ENDS TOMORROW' badge on the bundle offer, creating FOMO while simultaneously simplifying the decision by bundling complementary products at a deeper discount to increase average order value.

Pro Tip

Add a visual countdown timer next to the 'ENDS TOMORROW' badge to amplify urgency and create real-time pressure, especially since the offer expires at a specific time (11:59pm PT) mentioned in the fine print. • Include a short testimonial or star rating snippet under each mattress tile to build social proof directly at the point of product consideration, since the hero section mentions '+100K 5-STAR REVIEWS' but doesn’t reinforce it where it matters most.

Colors:
#1E3A8A
#6B8ECE
#F5F5F5

5. Long weekend = long naps

5. Long weekend = long naps
5. Long weekend = long naps
Subject: Long weekend = long naps
Objective

This email aims to drive immediate sales during the Memorial Day weekend by promoting discounted mattresses and sleep products, while tying the offer to seasonal leisure activities like BBQs and naps to create emotional relevance and urgency.

Why this works

The email brilliantly ties seasonal behavior, long weekends and outdoor gatherings, to the product benefit of restful sleep, making the sale feel timely and emotionally resonant rather than just transactional.

How to implement

Each mattress is presented with a distinct lifestyle hook, from cooling tech for summer nights to supportive comfort for road trip recovery, helping shoppers self-identify with a specific need and reducing decision fatigue.

Pro Tip

Add a countdown timer near the hero section to reinforce the 'limited time' urgency and encourage immediate clicks before the Memorial Day sale ends. • Include a short customer testimonial or star rating beneath each mattress description to build social proof and reduce hesitation for high-consideration purchases.

Colors:
#4A6FA5
#FFFFFF
#2C3E50

6. Exclusive: Up to extra 10% off everything.

6. Exclusive: Up to extra 10% off everything.
6. Exclusive: Up to extra 10% off everything.
Subject: Exclusive: Up to extra 10% off everything.
Objective

This email aims to drive immediate sales by offering subscribers an exclusive extra discount on top of existing promotions, while personalizing product recommendations based on lifestyle segments to increase relevance and conversion.

Why this works

The email brilliantly layers discounts, combining site-wide sales with subscriber-exclusive perks, to create urgency and perceived value, making the offer feel unmissable without diluting brand positioning.

How to implement

By segmenting product recommendations around relatable lifestyle moments like 'movie nights in bed' or 'waking up sore,' Casper transforms generic promotions into emotionally resonant, personalized shopping experiences that guide users toward relevant solutions.

Pro Tip

Add a countdown timer near the hero section to reinforce urgency for the subscriber-exclusive discount, since the offer expiration date is buried in fine print at the bottom and may not motivate immediate action. • Include a brief testimonial or social proof snippet under each product category (e.g., 'Rated 4.8/5 by 2,000+ customers') to build trust and reduce friction for first-time buyers considering high-ticket sleep products.

Colors:
#6C8BFF
#1A2A5E
#C42C5E

7. Find your fluff with 10% off all pillows!

7. Find your fluff with 10% off all pillows!
7. Find your fluff with 10% off all pillows!
Subject: Find your fluff with 10% off all pillows!
Objective

This email aims to drive immediate sales by promoting a Presidents’ Day discount while educating subscribers on pillow fill options to build trust and guide informed purchasing decisions. It blends promotional urgency with educational content to position Casper as a sleep authority.

Why this works

The email smartly pairs a time-sensitive sale with educational content about pillow fills, turning a simple discount into a value-driven conversation that builds trust while nudging toward purchase.

How to implement

Using a playful illustration of a magnifying glass inspecting pillow fluff visually reinforces the theme of discovery and quality, making technical product details feel approachable and engaging for casual shoppers.

Pro Tip

The primary CTA 'Shop sale >' is buried under educational content; reposition it above the blog section or duplicate it after the hero to reduce friction for impulse buyers. • Add a visual indicator like a countdown timer or 'Limited Time Offer' badge near the sale banner to heighten urgency and reinforce the time-sensitive nature of the discount.

Colors:
#1E3A6B
#F5F5F5
#E8E8E8

8. This Weekend Only: Extra 10% off our Presidents' Day Sale...

8. This Weekend Only: Extra 10% off our Presidents' Day Sale...
8. This Weekend Only: Extra 10% off our Presidents' Day Sale...
Subject: This Weekend Only: Extra 10% off our Presidents' Day Sale...
Objective

To drive immediate sales during the Presidents’ Day promotion by offering time-sensitive discounts and encouraging subscribers to shop across multiple product categories. The email also aims to deepen customer engagement through exclusive perks and SMS sign-ups.

Why this works

The email brilliantly layers urgency and exclusivity by combining a limited-time holiday sale with a subscriber-only bonus discount, making the offer feel both timely and personally rewarding for loyal customers.

How to implement

By visually segmenting product categories with clear discount tags and lifestyle imagery, the email simplifies decision-making for shoppers while reinforcing product benefits through emotionally resonant taglines like 'Home of the snooze.'

Pro Tip

The hero section’s CTA button is visually buried under the product image; repositioning it or increasing its contrast would improve click-through rates by making the primary action more immediately discoverable. • The email lacks a visible countdown timer for the 10% extra discount, which could significantly boost urgency, adding a dynamic timer near the offer copy would reinforce the time-sensitive nature of the subscriber perk.

Colors:
#0A1F44
#6BB9F0
#FF6B6B

9. Save up to 25% on bundles during our Back to School Sale.

9. Save up to 25% on bundles during our Back to School Sale.
9. Save up to 25% on bundles during our Back to School Sale.
Subject: Save up to 25% on bundles during our Back to School Sale.
Objective

This email aims to drive sales during Casper’s Back to School Sale by promoting discounted bundles and exclusive subscriber perks, encouraging immediate purchase through clear pricing and urgency-driven messaging.

Why this works

The email brilliantly ties product value to student life by naming bundles like 'The Freshman Bundle' and 'Comfy Bundle,' making the offer feel personally relevant and emotionally resonant with its target audience.

How to implement

By highlighting both upfront savings and financing options via Affirm, Casper removes financial friction and appeals to budget-conscious shoppers without diluting the perceived value of the discount.

Pro Tip

Add a countdown timer beneath the hero headline to visually reinforce urgency, especially since the offer expires soon, this would increase conversion pressure without adding clutter. • Include a brief testimonial or star rating next to each bundle to build social proof; currently, the product grid relies solely on price and imagery, missing an opportunity to validate quality.

Colors:
#FFC740
#1A2E5F
#FFFFFF

10. Today Only: 25% off furniture + more deals

10. Today Only: 25% off furniture + more deals
10. Today Only: 25% off furniture + more deals
Subject: Today Only: 25% off furniture + more deals
Objective

This email aims to drive immediate sales by promoting a limited-time Black Friday sale across Casper’s furniture and mattress lines, encouraging customers to treat themselves to premium sleep solutions while creating urgency through time-sensitive discounts.

Why this works

The email masterfully layers urgency and celebration by announcing 'Black Friday starts now' alongside 'Treat yourself to sleep worth celebrating,' which emotionally aligns discount-driven behavior with self-care and luxury.

How to implement

By segmenting product categories into visually distinct blocks with clear discount percentages and benefit-driven copy, like 'Plush comfort meets targeted support', the email guides shoppers through logical purchase paths without overwhelming them.

Pro Tip

Add a countdown timer under the 'Today Only' furniture offer to visually reinforce urgency and prevent perceived ambiguity about how long the 25% discount lasts. • Reposition the 'Shop now' CTA buttons to appear directly beneath each product image instead of below descriptive text, reducing scroll friction and increasing conversion likelihood for mobile users.

Colors:
#2A2A6C
#E84A70
#FFFFFF