You can ensure your baby sleeps well in a warm and constant temperature throughout the night. No more will he/she be throwing off covers and waking up cold in the middle of the night. It makes night feeds really easy, you can just pick up baby and feed them in the sleeping bag without having to unzip it.
You can add layers under the swaddle or sleep sack according to the temperature. Inside the swaddle or sleep sack you will probably have a onesie and a gown or sleeper of a warm fabric during the colder months. The sleeper or gown under the sleep sack should have long sleeves to cover the arms.
Between 24 and 25 degrees, a vest and a light blanket or sleeping bag with a tog of 0.5. If it's between 22 and 23 degrees, a vest alongside a sleeping bag or blanket with a tog of 1 will suffice. If it's between 18 and 21 degrees, add a sleepsuit to the vest and 1 tog sleeping blanket.
Babies are wriggly little things, and baby sleeping bags were designed to stop babies accidentally covering their heads during sleepy wriggles. Another benefit to sleeping bags is that they prevent babies from kicking off the covers in the night. Sudden temperature changes can disturb a baby's sleep.
Generally applies to the size of the baby sleeping bag: Your baby needs to grow out of the suitable sleeping bag. If your baby grows into the sleeping bag, it is too big! Rule of thumb: For a difference of max. 2 cm, round up to the next baby sleeping bag size.
Don't use pillows and duvets – they're not safe for babies less than a year old because of the risk of suffocation. Duvets can also make your baby too hot. Sheets and layers of blankets tucked in firmly below your baby's shoulder level or a baby sleeping bag are safe for your baby to sleep in.
That said, keeping the temperature between 68 and 72 degrees F is a good range in the summer and winter. When the room is too hot, research has shown that it can increase your baby's risk of SIDS; when it's too cold, baby can easily become uncomfortably chilly and wake up unnecessarily.
Because babies are smaller - they would overheat with a higher tog. Being smaller they heat up faster. Babies have much faster metabolisms than adults, so they heat up faster, as Iggly said.
The basic rules. Perhaps you've heard about the general rule of thumb for dressing your baby for sleep: Put them in one additional layer than you would wear at night. This makes sense, as a baby should not sleep with a loose sheet or blanket.
Older babies can sometimes have cold hands or feet that look blue if they're temporarily cold — like after a bath, outside, or at night. Don't worry. This is normal and will go away completely as baby develops a stronger blood circulation system.
The recommended guidelines for a 2.5 tog grobag is a long sleeved vest at this temperature. This doesn't seem very much although he is not really a cold baby.
It is important to make sure that your baby is a comfortable temperature – not too hot or too cold. The chance of SIDS is higher in babies who get too hot. A room temperature of 16-20°C – with light bedding or a lightweight, well-fitting baby sleep bag– is comfortable and safe for sleeping babies.
Grobag Baby Sleep Bags are designed to be used instead of blankets and top sheets and you need to regularly check your baby to make sure he or she is not too hot or cold, as all babies are different.
You should consider the temperature of the nursery (ideally 18-20 degrees) and the clothing your baby is wearing under their sleeping bag. Tog' refers to the thermal resistance of your baby's sleeping bag. The higher the tog, the more warmth the sleeping bag will retain; the lower the tog, the less heat they'll retain.
