Updated October 21, 2026 · HabitatCue Editorial Team
Amerisleep vs The Little Green Sheep
Amerisleep
The Little Green Sheep
Higher score in this comparison
Amerisleep vs The Little Green Sheep: the differences
| Compare | AmerisleepReviewVisitVisit | The Little Green SheepReviewVisitVisit |
|---|---|---|
| Warranty | 20 yearsHigher | 5 years |
| Height (cm) | 30.48 | 10 |
| Trial return fee | $0 | £0 |
| Markets | US | GB |
| Queen-size price | $1,749 | Not confirmed |
| Certifications | Certipur us, Oeko tex, Greenguard, Gots, Gols | Not confirmed |
Same on both: Sleep trial (nights) (100), Free delivery (Yes).
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Key differences
- The Little Green Sheep scores higher overall: 9.2 vs 9.0.
- Warranty is higher at Amerisleep: 20 years vs 5 years.
- Support channels: only The Little Green Sheep offers Chat, Help centre.
- Founded is lower at The Little Green Sheep: 2006 vs 2010.
- Mattress types: only Amerisleep offers Memory foam, Hybrid.
- Mattress types: only The Little Green Sheep offers Innerspring, Organic.
- Firmness options: only Amerisleep offers Soft, Medium firm.
- Markets: only Amerisleep offers US.
- Markets: only The Little Green Sheep offers GB.
Our verdict on each
Amerisleep
Amerisleep sells memory foam and hybrid mattresses with different firmness and construction choices. Its AS3 is described as a medium-feel all-foam mattress combining Bio-Pur foam with HIVE zoned support; the AS3h uses foam and coils. The company says its mattresses use a cotton-rayon fire barrier instead of fiberglass and advertises a 100-night trial and 20-year...
The Little Green Sheep
The Little Green Sheep suits families in the UK who want a long trial on a natural-material mattress without leaving home to decide. It ranks in the top tier for trial length, with 100 nights at home and a 5 years warranty behind it.
Score breakdown
| Area | Amerisleep | The Little Green Sheep |
|---|---|---|
| Cost | 8.9 | 9.3HigherFree delivery from £50 and £0 return postage keep the cost of trying a mattress low. |
| Offer | 8.9 | 9.0HigherA trial of 100 nights with latex, innerspring and organic mattress types gives real room to decide. |
| Trust | 9.4Higher | 9.3Trading as Green Sheep Group Ltd since 2006, with support on email, phone and chat. |
Choosing between them
Pick Amerisleep if warranty matter most.
Pick The Little Green Sheep if cost matter most.
Where each is licensed and available
| Country | Amerisleep | The Little Green Sheep |
|---|---|---|
| Headquarters | United States | United Kingdom |
Additional countries for Amerisleep: 1. Additional countries for The Little Green Sheep: 1.
What we checked
Amerisleep
- amerisleep.com: 13 facts, checked October 1, 2026
The Little Green Sheep
- thelittlegreensheep.co.uk: 12 facts, checked September 30, 2026
How they place
| Ranking | Amerisleep | The Little Green Sheep |
|---|---|---|
| Mattress brands | 14 of 193 | 8 of 193 |
| Bedding and sheets | 17 of 211 | 12 of 211 |
| Pillows and mattress toppers | 27 of 186 | 17 of 186 |
Every fact side by side
| Fact | Amerisleep | The Little Green Sheep |
|---|---|---|
| Mattress types | Memory foam, Hybrid, Latex | Latex, Innerspring, Organic |
| Firmness options | Soft, Medium, Medium firm, FirmCovers more | Medium, Firm |
| Legal entity | Not confirmed | Green Sheep Group Ltd |
| Headquarters | United States | United Kingdom |
| Founded | 2010 | 2006Lower |
| Support channels | Email, Phone | Email, Phone, Chat, Help centreCovers more |
Furniture
| Fact | Amerisleep | The Little Green Sheep |
|---|---|---|
| Products | Sheets, Duvet covers, Pillows, Toppers | Sheets, Duvets, Duvet covers, Pillows |
| Price from | $130 | £35 |
| Delivery time (weeks) | 0 | Not confirmed |
| Return window | 100 days | 100 days |
| In-home trial | 100 days | Not confirmed |
| Assembly included | No | Not confirmed |
| Materials | Bamboo, Cotton, Memory foam, WoolCovers more | Cotton, Wool |
Bedding
| Fact | Amerisleep | The Little Green Sheep |
|---|---|---|
| Highest thread count (threads) | 310 | Not confirmed |
| Free delivery threshold | $0 | £50 |
Furniture and home stores
| Fact | Amerisleep | The Little Green Sheep |
|---|---|---|
| Departments | Beds, Bedding, Furniture | Not confirmed |
| Assembly service | Yes | Not confirmed |
| Finance | Yes | Not confirmed |
Where each stands against the rest
| Fact | Amerisleep | The Little Green Sheep | Median |
|---|---|---|---|
| Queen-size price | $1,749above the median | Not confirmed | $1,287 |
| Sleep trial (nights) | 100at the median | 100at the median | 100 |
| Warranty | 20 yearshighest quarter | 5 yearsbelow the median | 10 years |
| Height (cm) | 30.48above the median | 10lowest quarter | 27 |
Median across 131 listed brands.
Pros and cons
Amerisleep
Pros
- AS3 combines Bio-Pur foam with HIVE zoned support and a medium feel.
- The lineup includes all-foam and hybrid models.
- The brand advertises a 100-night trial and 20-year warranty.
Cons
- Several models differ mainly in feel, so the right choice depends on personal comfort
- The lineup centers on foam and hybrid designs rather than other mattress types
The Little Green Sheep
Pros
- A long trial of 100 days nights at home, well above the 100 typical of the mattress ranking.
- Return postage is free at £0, so a trial costs nothing extra if the fit is wrong.
- Support runs on email, phone and chat, giving more ways to reach a person than most brands in the ranking.
Cons
- The 5 years warranty is below the 10 across the mattress ranking, and well short of lifetime cover.
- Delivery reaches GB only, so buyers outside the UK are not covered.
- Firmness covers medium and firm, so there is no soft or medium-firm option.
Who each suits
Amerisleep
Who it suits
- Shoppers comparing foam or hybrid mattresses and interested in the AS3 medium feel.
Who should look elsewhere
- Buyers looking for one feel or construction to suit every sleeper.
The Little Green Sheep
Who it suits
- UK households shopping a natural-material mattress with a long home trial
- Parents furnishing a cot bed who want cotton and wool bedding in the same order
Who should look elsewhere
- Anyone outside GB, who will not find delivery
- Buyers who want a soft or medium-firm feel, since firmness covers medium and firm
- Anyone after a very long warranty, given 5 years against lifetime cover
Current offers
The Little Green Sheep
Current offer
Discount code
Email sign-up code for 10% off any product: 10% off
Sign up to the email list; cannot be used in conjunction with any other promotional offer; one use per account; valid direct and at participating retailers
Source, checked September 30, 2026
Country by country
| Country | Amerisleep | The Little Green Sheep |
|---|---|---|
| United Kingdom | No | Yes |
| United States | Yes | No |
Questions about each
Amerisleep
How does AS3 differ from AS3h?+
Amerisleep describes AS3 as all foam and AS3h as a hybrid combining foam and coils.
What is Bio-Pur foam made from?+
Bio-Pur foam is made with castor bean oil instead of petroleum. This plant based base is designed to feel breathable, a quality many memory foams lack. It appears in several mattress models in the range, giving sleepers a foam option that differs from traditional petroleum based memory foam.
The Little Green Sheep
How long is the trial period on the mattress?+
The Little Green Sheep offers a trial of 100 days nights at home, which is longer than the 100 across the mattress ranking. The return window is the same length at 100 days, so the two limits do not clash. Sleeping on it for months is a realistic option here.
What does returning a mattress cost?+
Return postage is free, listed at £0. That matters more for a mattress than for smaller bedding, because the cost of sending one back would usually fall on the buyer. Alongside a trial of 100 days nights, the free return removes most of the risk from trying it.