Therm-a-rest Boost 650 20F/-6C Sleeping Bag Comfort Rating 0°C

*GET 50% OFF A THERM-A-REST AIR HEAD DOWN PILLOW WHEN YOU BUY THIS SLEEPING BAG*

COMFORT ISN’T ‘ONE SIZE FITS ALL’, SO THE THERM-A-REST BOOST 650 ALLOWS YOU TO CUSTOMISE ITS SHAPE FOR THE PERFECT BALANCE OF SPACE AND WARMTH.

The Boost Sleeping Bag is designed for maximum comfort, featuring a spacious semi-rectangular shape that offers ample room for side sleeping, shifting positions, or stretching out without feeling restricted. Unlike a traditional mummy bag, the semi-rectangular design provides significantly more internal space, allowing you to sleep in any position, whether curled up or fully stretched. You’ll enjoy the freedom to relax however you prefer throughout the night.

While the extra space provides comfort, it also means you need more warmth to stay cosy, and that’s where the innovative WarmZip comes into play. This clever feature ensures you stay warm even in cooler conditions, keeping you comfortable through the night.

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KEY FEATURES OF THE BOOST 650

• Customisable Comfort: Choose between a semi-rectangular bag or mummy bag for tailored warmth and space.

• WarmZip™ Tech: Patent-pending centre zipper design reduces internal space, boosting warmth by up to 10°F/6°C.

• Multi-Use Arm Holes: Reach the WarmZip, read, play cards, or ventilate, all while staying inside your bag.

• Plush & Puffy: 650-fill RDS-certified hydrophobic down with Zoned Insulation for enhanced heat efficiency and comfort.

• Eco-Conscious Materials: Shell and liner made from 100% recycled nylon with PFAS-free water repellent coating.

• Inclusive Sizing: Available in Short, Regular, Long, and Wide for a customised fit.

• Additional Features: YKK anti-snag zippers, cinchable hood, zipper draft tube, puffed draft collar, and a two-way entry zipper.

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