Custom size
- Memory foam
- 8 in thick
- not stated
Made to 60 × 78 inGet a quote
That isn't a standard mattress size, so order a custom size cut to your platform.
Grand Design spec sheet, 2027.
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The Imagine bedroom. Measure the platform, not the old mattress, before you buy.
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2027 | 60 × 78 in | – | – | Grand Design spec sheet |
| 2027 | 60 × 78 in | – | – | Grand Design spec sheet |
Years not listed weren't published.

Grand Design's 2027 17MKA floorplan.
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2027 | Imagine AIM 17MKA | 21' 8" | 2 |
| 2027 | Imagine AIM 17MKA | 21' 8" | 2 |
The main bed is 60 × 78 in (Grand Design spec sheet, 2027).