1. Product Overview
The CHILLSUN Twin Air Mattress is an inflatable airbed designed for comfort and convenience, featuring a built-in electric pump for quick self-inflation and deflation. Its durable, multi-layered PVC construction with a waterproof flocked top ensures longevity and a comfortable sleeping surface. Ideal for home use, portable camping, or accommodating guests.
Key Features:
- Rapid Self-Inflation/Deflation: Equipped with a built-in 110V electric air pump and a unique dual inflation system for quick setup and pack-down in approximately 3 minutes.
- Durable & Waterproof: Constructed with 0.4mm PVC leak-proof material and a 0.2mm waterproof flocked top layer, resisting punctures and ensuring durability.
- Upgraded Material: Made from a new PVC formula for increased toughness, wear resistance, and resistance to deformation.
- Comfortable Size: Measures 75"L x 39"W x 18"Th, providing excellent support for a restful sleep.
- High Weight Capacity: Supports a maximum weight of 550 pounds.
- Portable & Easy to Store: Features a self-deflating function and includes a travel storage bag for convenient transport and compact storage.
- Certified Quality: Holds international safety certifications (CE, ETL) for safety and performance.

Figure 1: Fully inflated CHILLSUN Twin Air Mattress.
2. Included Components
- 1 x CHILLSUN Twin Air Mattress with Built-in Pump
- 1 x User Guide
- 1 x Carry Bag
- 1 x Repair Patch
3. Setup Instructions
3.1 Unpacking and Preparation
- Remove the air mattress from its carry bag and unroll it on a clean, flat surface.
- Ensure the area is free from sharp objects that could puncture the mattress.

Figure 2: Unrolling the air mattress for setup.
3.2 Inflation
- Locate the built-in electric pump on the side of the mattress.
- Plug the integrated 110V power cord into a grounded AC electrical outlet.
- Turn the pump dial(s) to the "INFLATE" position. The pump will begin operating.
- Allow the mattress to fully inflate. This typically takes approximately 3 minutes for the Twin size.
- Once the air mattress is fully inflated to your desired firmness, turn the pump dial(s) to the "OFF" position and unplug the power cord.
- Tuck the power cord into its designated storage compartment to keep it tidy and secure.

Figure 3: Built-in pump and inflation/deflation dials.

Figure 4: Detail of the built-in pump with dual controls.
4. Operating Instructions
4.1 Adjusting Firmness
The firmness of the mattress can be adjusted by slightly deflating or inflating it. For a softer feel, briefly turn the dial to "DEFLATE". For a firmer feel, briefly turn the dial to "INFLATE".
4.2 Deflation
- Ensure the power cord is plugged into a grounded AC electrical outlet.
- Turn the pump dial(s) to the "DEFLATE" position. The pump will begin to extract air from the mattress.
- Allow the mattress to fully deflate. This self-deflating feature ensures quick and easy packing.
- Once deflated, turn the pump dial(s) to the "OFF" position and unplug the power cord.
5. Maintenance and Care
5.1 Cleaning
- To clean the mattress, wipe it with a damp cloth using soapy water and tap water.
- DO NOT use any chemicals, solvents, or harsh detergents, as these can damage the PVC material and flocked surface.
5.2 Storage
- Ensure the mattress is completely clean and dry before storing it to prevent mold or mildew.
- Fold or roll the deflated mattress neatly to fit into the included travel storage bag.
- Store the mattress in a cool, dry place away from direct sunlight and extreme temperatures.

Figure 5: Folding the air mattress for storage in its carry bag.
6. Troubleshooting
6.1 Mattress Losing Air
- Check Valve Caps: Ensure all valve caps are securely closed after inflation.
- Inspect for Leaks: Use soapy water to check for small punctures or leaks along seams and the mattress surface. Apply the included repair patch if a leak is found.
- Temperature Changes: Air mattresses can lose firmness due to temperature drops. Re-inflate slightly if the room temperature decreases.
6.2 Pump Not Operating
- Power Connection: Verify the power cord is securely plugged into a working grounded outlet.
- Dial Position: Ensure the pump dial is correctly set to either "INFLATE" or "DEFLATE".
7. Specifications
| Brand | CHILLSUN |
| Model Name | WL-966 |
| Item Model Number | CS-twin-purple |
| Size | Twin (75"L x 39"W x 18"Th) |
| Material | PVC with Flocked Top |
| Weight | 11.6 pounds |
| Maximum Capacity | 550 Pounds |
| Included Components | Built-in Pump, User Guide, Carry Bag, Repair Patch |
8. Warranty and Support
The CHILLSUN Twin Air Mattress comes with a 1-year warranty from the date of purchase, covering manufacturing defects. For warranty claims, technical support, or any inquiries regarding your product, please contact CHILLSUN customer service through the retailer's platform or the official CHILLSUN website.
Please retain your proof of purchase for warranty validation.