Still Warm in the Morning, Not Lukewarm by Bedtime
A standard hot water bottle is lukewarm within two hours and barely covers half your back. This one holds two liters, is still warm up to six hours later, and comes wrapped in a soft knit cover.

Why bottles stand out:
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2-liter capacity — covers your whole lower back or stomach, not just a handspan.
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Still 86°F (30°C) after six hours — fill it at night and it's still comfortably warm by morning — 145°F (63°C) at 1 hour, 113°F (45°C) at 3 hours.
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Soft knit cover — sits right against your skin and takes the edge off that first hot minute.
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Also works as a cold pack — freeze it instead of filling it hot, for bruises or a hot summer night.
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Wide fill opening — fill it without spilling, with a cap that actually seals.
Specifications:
- Type: Hot water bottle with knit cover
- Capacity: 2 liters (68 fl oz)
- Dimensions: approx. 12 x 7.5 in (30 x 19 cm)
- Heat retention: 145°F at 1 hr, 113°F at 3 hrs, 86°F at 6 hrs
- Includes: Bottle and soft knit cover
- Also works as: Cold compress
- Colors: Green, Pink, Orange, Light Blue, Navy