
0% Installment Terms
- ฿3,000 – ฿3,4994 months
- ฿3,500 – ฿4,9996 months
- ฿5,000 and above10 months
✓ Choose 0% installments at checkout — no payment is collected at this step.
* 0% installment terms subject to issuing bank conditions.
* If you cancel your order yourself (e.g. change of mind) after paying by 0% installment, the refund will be reduced by the installment fees already charged by the bank, so a full refund is not possible. If the issue is on our side (defective item / wrong delivery), you receive a full refund.
Select size
Which mattress size fits you best?
Choosing the right mattress size isn't just about preference — consider these 2 things first: how much room space you have and who'll be sleeping on it and we'll help you find the size that fits
· This mattress is 12in thick
3.5 ft
Single sleeper · teens · small room, space-saving
5 ft
Most popular for couples · spacious enough for 2 sleepers
6 ft
Widest · families with kids or pets
Size & weight for this model
| Size | W × L × H | Weight |
|---|---|---|
| 3.5 ft | 107 x 198 x 30 cm | 24.61 kg |
| 5 ft | 153 x 198 x 30 cm | 34.46 kg |
| 6 ft | 183 x 198 x 30 cm | 40.87 kg |
| *Dimensions may vary by ± 1-2 cm. **If placing in tight spaces, allow 2-3 cm extra clearance. | ||
- Ergogenic Natural Latex · supports your spine naturally · eases back pain
- Memory Foam Cooling Gel · reduces heat buildup · contours and relieves pressure
- Copper Tech Infused Foam · copper-particle foam · fights bacteria, cuts odor · only available in Thailand from us
- Charcoal Marble Foam · absorbs moisture · cuts odor · keeps things clean
- Firm Support Foam · stabilizes hips and lower back · prevents bowing
- 3D UltraCool Fabric · cool-touch · breathable · made for hot weather
- Motion-isolating · great for couples
- Supports up to 300 kg
- 10-year structural warranty
Which pillow size fits you best?
Standard
Standard size · fits all sleeping positions · works with any mattress size
King
Larger than standard ~30% · for 6 ft mattresses or restless sleepers
Experiences from Atlantis Max Firm owners
Photos and videos from customers
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Comfort: Good Quality: Good Firmness: Good Delivery was fast, didn't wait long. Received everything complete and correct, nothing damaged. I recommend it to everyone. Very impressed. ✅✅✅by m*****a · Translated from Thai
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by k******i
Customer reviews
- m*****aVerified buyerTranslated from ThaiComfort: Good Quality: Good Firmness: Good Delivery was fast, didn't wait long. Received everything complete and correct, nothing damaged. I recommend it to everyone. Very impressed. ✅✅✅
- k******iVerified buyer
- n******fVerified buyerTranslated from ThaiComfort: Comfortable to sleep on Firmness: Firm, doesn't sag Quality: Good
- m******9Verified buyerTranslated from ThaiVery good quality, soft and comfortable to sleep on. I give it a full 10.
- d****3Verified buyerTranslated from ThaiSoft but firm, doesn't sag when you lie down. Very good.
- 7******jVerified buyerTranslated from ThaiWorks well, comfortable to sleep on.
- w******qVerified buyerGood
- y******tVerified buyerTranslated from ThaiFast delivery, packed well.
- n******yVerified buyerTranslated from ThaiNew model, suitable for resting.
- p*****iVerified buyerTranslated from ThaiFirmness: Very good Comfort: Soft but firm, comfortable, supports the body shape very well
Sleep on the same mattress as the world's finest hotels — every night at home
Hotel mattress craftsmanship for over 30 years
Frequently asked questions
Is there a shipping fee?
We deliver free across Thailand, including remote areas and islands.
How long does delivery take?
Order prep: 1–2 business days
Delivery in Bangkok and nearby provinces: 3–5 business days
Delivery to other provinces: 5–10 business days
*Business days exclude weekends and public holidays. Delivery may take a little longer during festive periods.*
What payment methods do you accept?
We accept a range of payment methods:
- Cash on delivery (per company policy, no additional fee)
- Mobile Banking / PromptPay (pay through your banking app or scan the QR code; transfers go to the account of Sleephappy Co., Ltd. only)
- Credit / debit card
- 0% installments for up to 10 months (participating cards only, and subject to the bank's terms)
What if my product has a problem and I want to exchange it?
If a manufacturing defect is found within the first 2 years from delivery date the company will consider replacing the product one time at no charge
If it exceeds 2 years replacements will be charged according tousage duration (Pro-Rated Warranty) (Pro-Rated Warranty)
For any issues, please contact us at Line OA: @sleephappyth Phone: 099-745-4265 / 099-246-5626
Where can I find more details about the warranty?
Warranty terms can be viewed on the Warranty & Return Policy (Warranty & Return Policy)









