INTEX Dura-Beam Plus Air Mattress with Built-in Pump Twin
- Weight Capacity Maximum: 300 pounds
- Capacity: 300 pounds
- Item Thickness: 16.5 inches
- Item Depth: 75 inches
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A twin-size raised air mattress with an internal AC pump and fiber-beam construction, built for occasional and guest use rather than daily sleeping.
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ASIN: B0869FL812Model: 64121EDCategory: Air Mattresses
Sizes Available
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Overview
This is Intex's 16.5 inch raised twin air mattress with a built-in electric pump, model 64121EP, aimed at guest room, travel and camping use.
Dura-Beam refers to the internal fiber construction, thousands of polyester fibers connecting the top and bottom rather than the simple air coils used in cheaper beds, which is what the listing credits for resisting sag under weight. Intex also flags that new mattresses stretch on first inflation, and that the resulting pressure drop is not the same thing as a leak.
- 16.5 inch raised twin air mattress
- Built-in AC electric pump
- Fiber-Tech Beam internal construction
- Built-in pillow at the head
Who it's for
Not the pick for someone wanting a mattress for nightly, long-term use as a primary bed.
Pros and cons
- Built-in electric pump inflates in about 2 minutes
- Raised 16.5 inch height with a built-in pillow
- Fiber-beam interior resists sagging under weight
- Suited to indoor and outdoor use
- Pump requires 110-120V AC power, not battery operated
- First inflation stretch can feel like a slow leak
Performance notes
The built-in AC pump inflates the bed in around two minutes and can also deflate it, which is the main convenience difference from air beds sold without a pump. Bottom ring stability and the fiber-beam interior are what resist sagging over a night's use.
Specifications
| Brand | Intex |
|---|---|
| Model | 64121ED |
| Dimensions & fit | |
| Weight Capacity Maximum | 300 poundslower than 85% of 21 air mattresses |
| Item Depth | 75 inches |
| Item Weight | 7.7 pounds |
| Item Dimensions L x W x Thickness | 75 × 39 × 16.5 inches |
| Item Dimensions | 21 × 15.5 × 13.5 inches |
| Capacity & performance | |
| Capacity | 300 pounds |
| Construction & materials | |
| Construction Type | Hybrid |
| Material Type | Polyvinyl Chloride (PVC) |
| Top Material Type | PVC |
| Mattress Comfort Layer Material | Cotton, Wool |
| Fill Material | Air |
| Color | Navy |
| Cover Material | Velvet Or Similar Soft Fabric |
| Included components | |
| Unit Count | 1 |
| Number of Packs | 1 |
| Included Components | Carry Bag |
| Other details | |
| Item Thickness | 16.5 inches |
| Item Firmness Description | Firm |
| Water Resistance Level | Water Resistant |
| Number of Layers | 2 |
| Shape | Rectangular |
| Number of Items | 1 |
| Set Name | SIZE_NAME/STYLE_NAME |
| Product Care Instructions | Wipe With Damp Cloth |
| Item Type Name | Airbed |
Closest rivals on specs
FUNBOY Kids Pink Castle Inflatable Travel Air Bed- Item Thickness 16.5 vs 15 inches (+10%)
Amazon Basics Air Mattress with Built-in Pump Twin- Item Weight 7.7 vs 10.69 pounds (-28%)
Frequently asked questions
Does the Intex 64121EP need a separate pump?
No, the electric pump is built into the mattress and runs on standard 110-120V power.
Why does a new mattress seem to lose air quickly?
Intex notes the material stretches on first use, which can feel like a leak; re-inflating over the first 2-3 nights lets it settle.
Can this be used outdoors?
Yes, the listing states it is built for both indoor and outdoor use, including camping.