Sleep Cloud Altitude System

Sleep at altitude. Train at full intensity.

The Box Altitude Sleep Cloud makes it possible to incorporate simulated-altitude exposure into your normal routine—without relocating to the mountains or compromising the quality of your sea-level training.

Designed as a spacious four-poster sleeping environment, the Sleep Cloud provides a comfortable alternative to traditional low-profile altitude tents. Its generous internal space and continuous airflow help create an open, comfortable sleeping environment for nightly altitude exposure.

The Live High, Train Low approach

Training at altitude can reduce the pace or power an athlete can sustain because less oxygen is available. The Live High, Train Low approach separates the altitude stimulus from the training session.

By sleeping at simulated altitude and training closer to sea level, athletes can accumulate meaningful hypoxic exposure while continuing to complete their key sessions at the required intensity.

With sufficient exposure, suitable altitude protocols may stimulate the body’s natural erythropoietic response and contribute to increases in total haemoglobin mass. This can support the blood’s oxygen-carrying capacity, although individual responses vary according to exposure, training status, recovery, health and iron availability.

Simple overnight altitude control

Choose your preferred simulated altitude and the system will automatically work to reach and maintain that setting throughout the night.

The Box Altitude Sensor monitors the sleeping environment, while the Box Altitude App allows you to control and review the system from your smartphone.

Altitude can be increased progressively, allowing users to acclimatise more comfortably and identify an appropriate level of exposure.

Designed for comfort

Unlike smaller sleeping tents, the Sleep Cloud surrounds the entire bed with generous space above and around the sleeper. This creates a more open sleeping environment and minimises the enclosed feeling commonly associated with conventional altitude tents.

The spacious design and continuous airflow also help manage heat and support a more comfortable overnight experience.

Sleep Cloud System components

• Sleep Cloud King: 2.35 m long × 2.35 m wide × 1.95 m high
• Sleep Cloud Queen: 2.15 m long × 1.95 m wide × 1.95 m high
• F10 or F20 Altitude Generator®
• Box Altitude Sensor®
• Box Altitude App® for iOS and Android

Understand your altitude response with Oxygen Coach

Altitude is not simply about reaching a particular elevation. The way your sleep, oxygen saturation, resting heart rate, HRV and recovery respond can help provide context for planning future exposure.

Developed by Box Altitude, Oxygen Coach brings your natural and simulated-altitude history together with available wearable and performance data. It is designed to help athletes plan altitude blocks, review overnight responses and track adaptation over time.

Download Oxygen Coach on the App Store

System features

• Simulated-altitude sleeping in your own bedroom
• Spacious four-poster design
• Engineered for quiet and comfortable overnight operation
• Smartphone altitude control
• Continuous altitude monitoring
• Gradual altitude progression
• Suitable for structured Live High, Train Low protocols
• Available in 110–120 V and 220–240 V configurations
• Maximum simulated altitude of up to 4,000 metres or 13,123 feet

Choosing your altitude

Many athletic altitude protocols use sleeping elevations around 2,000–2,500 metres. However, the most appropriate altitude and exposure schedule will vary between individuals.

New users should begin conservatively and increase altitude progressively while monitoring sleep quality, recovery and their response to the exposure. Athletes with medical conditions or concerns about oxygen exposure should consult a qualified healthcare professional before beginning an altitude program.