An energy efficient, low-voltage, totally portable baby formula maker, designed for convenience. Sleepy Bottle warms water to a perfect feeding temperature whilst you sleep. Keeping the formula dry and separate until it’s time to feed your baby. It’s ready in seconds: “Just twist and shake to mix the formula with the water”. Great traveling companion as well, it heats on the go. It can be plugged in to USB port, power bank or 12V car charger.”