Douglas Summit Review
Product Research: Our Process
Douglas Summit: Is It As Premium As They Claim?
Our Verdict
While the 365-night trial and the 20-year warranty may entice you to invest in this mattress, this mattress did not outperform similar mattresses from its competitors. Even with 2” more foam, common customer complaints include diminishing support, foul odour, lack of cooling, and lack of motion isolation, as seen in the reviews below. Instead I would suggest The Casper Mattress, or The Endy Plush as they performed better on all our tests and are in a similar price range.
Douglas Summit: Is It As Premium As They Claim?
Mattress Sizes & Prices
| Size | Price | Dimensions |
|---|---|---|
| Twin | $999 | 38″ x 75″ x 12” |
| Twin XL | $1049 | 38″ x 80″ x 12” |
| Full / Double | $1149 | 53″ x 75″ x 12” |
| Queen | $1299 | 60″ x 80″ x 12” |
| King | $1399 | 76″ x 80″ x 12″ |
| California King | $1399 | 72″ x 84″ x 12” |
| Split King | $2098 | 76″ x 80″ x 12″ |
Purchasing and Returns
Unboxing and First Impressions
The Douglas Summit arrived in a compact box, and judging by the condition of the box, I felt the delivery was not handled well. Upon unboxing, the mattress took about 15-20 minutes to expand to its full form, but as it did not feel sturdy enough, I decided to give it a full 48 hours before I tried it out. One thing I observed in customer complaints and experienced myself was the strong odour of this mattress that took 16 days to fully disappear. Compared to other mattresses we’ve tested from brands like Endy, Casper, and Silk & Snow, the Douglas mattress was underwhelming.
Construction
1. Douglas CoolSense® Cover
The machine-washable cover is made with cooling-infused nanofibers meant for temperature regulation.
2. 2.5” ecoLight® Cooling Gel Foam + Polar® Temperature Balancing
A layer of cooling-gel-infused memory foam meant to regulate temperature.
3. 2.5” Premium Elastex® Foam
Body-contouring memory foam.
4. 7” Motion Isolation Support Foam
Foundational support foam.
Comfort
Douglas Summit may have a 2” additional height of memory foam, but it did not provide any significant improvement in comfort for me compared to the other Douglas mattresses. For the price of the upgrade, I would suggest considering alternatives like The Casper, which has a knitted cover that enhances the overall coziness when you are snuggling into bed.
Firmness
The Douglas Summit scores 6 out of 10 on our firmness scale, leaning towards medium-firm. As a 127lb woman, I felt myself sinking into the memory foam when lying on the mattress, which I did not enjoy. If you’re like me and prefer a firm mattress, consider Endy or Silk & Snow, as they both offer firm versions of their all-foam mattress.
Motion Transfer
During our sleep tests for Douglas Summit, we noticed some movement in the water vessel on the mattress as the sleep tester got in and out of bed, suggesting that motion on the mattress’s surface is not well isolated. If you share your bed with someone, or have a pet who climbs on the bed, my advice would be to look for alternatives that offer better motion isolation, such as The Casper mattress.
Cooling
Although the mattress felt cool to the touch at first, after 30 minutes of lying on the mattress in our Spring 2025 testing, the mattress’s surface temperature increased. If you’re a hot sleeper, The Casper mattress has specific cooling capabilities in their AirScape technology-backed foam that helps facilitate temperature regulation.
Edge Support
The Douglas Summit does not show significant differences in edge support in comparison to the other Douglas models. When testing the mattress by sitting on the perimeter, I sank about 5 inches deep and slid off the mattress easily. When lying down closer to the edge, I observed a similar imbalance.
Sinkage and Responsiveness
One common disadvantage of the Douglas Summit is the enveloping feeling you get when you get in and out of bed, creating a sensation of feeling “stuck”. As Douglas mattresses have less bounce, the cradling surface may be frustrating to sleepers who constantly move across their sleep surface.
How does it suit different sleeping positions?
Side Sleepers
The Douglas Summit is soft enough to provide comfort for side sleepers who prefer their mattress to be more cushiony. However, heavier side sleepers may feel the sinkage more than their lightweight counterparts.
Back Sleepers
Heavier back sleepers may prefer a firm mattress to a medium-firm mattress, like the Endy Firm or S&S Firm. However, for lightweight back sleepers, the Douglas Summit can be comfortable enough.
Stomach Sleepers
Our stomach sleeper testers called out sinkage in their hip region as a point of unfavourablity more than any other sleeping type. However, it may be suitable for lightweight sleepers.
Combination Sleepers
Combination sleepers may find the Douglas Summit difficult to sleep, due to the enveloping feel and lack of bounce. Lightweight combination sleepers may find they can move easily, but bigger bodies may feel stuck when they try to move throughout the night.
Lightweight Sleepers
For lightweight sleepers, the Douglas Summit can provide adequate support and comfort.
Heavy People
Heavier testers sank deeper into this mattress than their lighter counterparts. We suggest considering alternatives like the Casper Dawn Extra Firm mattress, which is a durable, budget-friendly option.
Should You Buy the Douglas Summit?
Although the Douglas Summit is more expensive than the Douglas Original and Alpine, we did not observe a significant performance improvement that, in our opinion, justified the increased price point.
If you are looking for a mattress in a similar price range, there are plenty of suitable options that offer distinct performance differences that we believe contribute to a great night’s sleep. The Casper features the brand’s AirScape technology, offering superior temperature regulation, while the Casper Dawn Extra Firm is a great option for heavier people seeking more support.. For a more cushiony feel, The Endy Plush offers a soft sleeping surface at a more affordable price.
Please note: All prices referenced in this article reflect MSRPs and are accurate to the best of our knowledge as of February 1, 2025.
Frequently Asked Questions
How Douglas Summit Compares to Similar Mattresses
|
Douglas Summit |
The Casper |
The Endy Plush |
Douglas Alpine |
|
| Rating |
6.51/10 |
9.40/10 |
9.20/10 |
6.78/10 |
| Firmness |
Medium-firm |
Medium-firm |
Medium-plush |
Medium-firm |
| Material |
Memory Foam |
Memory Foam |
Memory Foam |
Memory Foam |
| Cooling |
|
|
|
|
| Best For |
Side Sleepers, Lightweight Sleepers, Short term use |
Suits a wide range of sleepers |
Suits a wide range of sleepers |
Side Sleepers, Lightweight Sleepers, Short term use |
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