The Serta Perfect Sleeper Select Kleinmon II Firm Size Mattress is one of the best overall options in the Perfect Sleeper collection, so long as you prefer a very firm comfort level. This mattress belongs to the second generation of Kleinmon models and includes many of the same features found in last year’s line, but at a more affordable price.
If you’re after a very firm comfort level that’s almost hard, the Kleinmon II Firm is a great option. With a score of 1.5 out of 10 on our Comfort Scale, with 10 being the softest, this kind of comfort feels similar to a carpeted floor.
Equipped With Highly Praised Coil SystemThe 880 Edition Custom Support IWC coil system contains a series of individually wrapped coils to deliver a high degree of body contouring, while maintaining solid support to the lower back. This system is compatible with adjustable bases and designed to keep motion transfer at a minimum for undisturbed rest.
HyperTouch Comfort Eases Pressure PointsThe HyperTouch Comfort System is included to maximize pressure relief near the top of the mattress where it’s the most important.
Feel Less Movement For Better Nights of SleepFrequently incorporated when making premium models, Cool Twist Gel Memory Foam promotes deep, rejuvenating rest through superior pressure relief.
An Amazing ValueIf you’re on the lookout for a mattress that has a great combination of performance and a good price point, the Serta Perfect Sleeper Select Kleinmon II Firm is a great choice, as long as you like a very firm comfort level.
Physical Characteristics
Comfort
- Extra Firm
- Comfort Scale Number 1.5
Quilt - Top of Mattress
- PerfectPure
- 1/2" Serta PillowSoft Foam
- 1/2" Serta Support Foam
Physical Measurements
| Size | Height | Width | Length | Weight |
| King | 10.5" | 76" | 80" | 99 lbs. |
| Cal King | 10.5" | 72" | 84" | 99 lbs. |
| Queen | 10.5" | 60" | 80" | 79 lbs. |
| Twin | 10.5" | 39" | 75" | 47 lbs. |
| Full | 10.5" | 54" | 75" | 66 lbs. |
| Twin XL | 10.5" | 39" | 80" | 50 lbs. |
| Size | Coil Count |
| King | 1068 |
| Cal King | 1033 |
| Queen | 880 |
| Twin | 556 |
| Full | 739 |
| Twin XL | 603 |
Works With All Bed Types
Box Spring
Traditional Frames
Adjustable Bases
Platform
Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!
120 Night In-Home Trial
- Try your mattress in the comfort of your own home for 120 nights!
- Just sleep on it for at least 30 nights so that your body can adjust to the new support system and if you are not completely satisfied within the 120 night trial, our sleep experts will help you select the perfect replacement!
- We'll also cover shipping and delivery! All you need to pay is a $139 processing fee.
