Planning for your new bed or need to measure your space? Mattress dimensions are standard. Base specifications vary by base type.
You'll find specifications for:
-
Sleep Number® mattresses
-
Sleep Number Smart FlexFit™ Adjustable bases
- Sleep Number Integrated base and optional frame
Sleep Number® Mattresses
| Size | Width | Length |
| Twin | 38" | 75" |
| Twin XL | 38" | 80" |
| Full/Double | 54" | 75" |
| Queen | 60" | 80" |
| King | 76" | 80" |
| California King | 72" | 84" |
- Mattress profile (height) varies by model.
Note: Mattress dimensions may vary, including slight expansion over time and may initially measure under the stated dimensions based on model and build to ensure proper base fit over time.
Sleep Number Smart FlexFit™ Adjustable Base
Measure your furniture before your bed arrives.
Your smart FlexFit base will fit inside most standard furniture, except platform furniture or furniture with under bed storage. We recommend measuring the inside of your furniture to make sure your furniture will work with a FlexFit base.
| Size | Width | Length |
| Twin XL | 37" | 79.5" |
| Full/Double | 53.5" | 73.5" |
| Queen | 59.5" | 79.5" |
| King | 75.5" | 79.5" |
| California King | 71.5" | 83.5" |
- King and Cal King (Include Split and FlexTop models): Two bases side by side secured by head, foot rails, and speed screws.
- Height (all sizes): 7 adjustable settings ranging from 13.75”-18.25” from floor to top of base.
- Weight of base: FlexFit 1: 110 lbs; FlexFit 2: 116 lbs; FlexFit 3: 138 lbs.
- Weight Limit: 600 lbs per side.
Note: You need headboard brackets if you plan to attach a headboard directly to your base. We suggest adding decorative legs to give your base a finished look if not placing your base inside a bed frame.
Sleep Number Integrated Base and Frame
The Sleep Number integrated base can be combined with our custom stylish frame or placed inside any standard size bed frame with center support.
| Size | Width | Length |
| Twin | 37.5" | 74" |
| Twin XL | 37.5" | 79" |
| Full/Double | 53.5" | 74" |
| Queen | 59.5" | 79" |
| King (2 pieces) | 37.5" | 79" |
| California King (2 pieces) | 35.5" | 83" |
- Height without optional frame (all sizes): 8" from floor to top of base.
- Height with frame (all sizes): 17" from floor to top of base.
- Weight Limit: 400 lbs per side.
Note: You need headboard brackets if you plan to attach a headboard directly to your base and frame. A stylish frame must be used when attaching Sleep Number headboard brackets to an integrated base. Contact customer service if you need to add a frame to your order.
Queen size Integrated Bases comes as split or one piece
The integrated base does not bend. If you have a narrow staircase, narrow entry to your home or bedroom we strongly encourage you to choose a split queen integrated base over one solid piece. Either will work for our Queen size smart beds.
Optional Frame
Compatible with the integrated base only. Cannot be combined with a modular base. A stylish frame must be used when attaching Sleep Number headboard brackets to an integrated base.