1. 8L hot water bottle without cover Say hello to boosted warmth with this range of hot water bottle packs, in a range of classic colours Save on electricity bills and stay extra warm during the colder months. These hot water bottles are a great way to upgrade your comfort and stay warm, whether you're working from home, relaxing in the evening or snuggling up in bed, with their long-lasting insulation Not only do these hot water bottles keep you warm, but they'll be your new best friend for relieving muscle tension and easing cramps CityComfort Hot Water Bottle Large 1.8L in Blue