I like the grobag has different tog rating and gave suggestion on their website on how to dress baby for bed according to the room temperature. My baby loves it and looks so cozy!

We have used many brands of sleep bags and Grobags are my least favourite. The zipper is really hard to navigate in the dark if you are attempting a sleepy baby transfer to the cot. For this reason, my 2 Grobags that I bought when pregnant sit in the cupboard as back up sleep bags. The prints are pretty and the quality is good but usability is poor.

My baby sleeps longer periods now since using the grobags. I assume she would get cold and wake up when she kicked her blanket off and I'd need to feed her back to sleep. Good quality, with poppers in the arm holes to make smaller/bigger, two way zip. The colour did run when washed and stained other items during the wash. Very happy with my purchase.

We got a 1 and 2.5 tog bag. As soon as we put them on bub snuggles in and goes to sleep easily. They keep him nice and warm and its great knowing he can't kick them off like a blanket. They are nice and wide for good hip movement. They wash and dry really quick or I zap them in the dryer. I highly recommend them. Try to get one in a sale as they are expensive.

After reading many good reviews about grobag, i purchased 3 of them for my baby girl. 2.5 tog worked very well during autumn. It is not bulky and quite comfortable. When it got a bit colder at night, she'd wear a long sleeve bonds wondersuit.

When it comes to winter however, i had a dilemma with what to wear underneath. If i put on 2 long sleeve tops to keep my baby's arms warm enough, the rest of her body gets too hot. I haven't tried grosuits yet. I dreaded the fact that on top of spending all the money on the bags, i still have to worry about buying additional stuff.

We have a 1 tog and a 2.5, my son prefers these to his others, always sleeps better. The designs are all really cute, the thermometer is really handy as its hard to know what to dress them in at night most of the time. We don't have a dryer but the 2.5 dries surprisingly quickly.

I bought a 0-6 month grow bag for my 3 month old baby and it's the best thing i ever did - because it helped her sleep through the night for the first time! She was a demon for kicking her covers off and the grobag keeps her warm.

I also like the poppers in the sleeves that can make the arm holes smaller for little babies so the bag can't creep up and be a smothering hazard. I also used it to swaddle one arm in when she was transitioning from that.

I currently have the 2.0 tog and find them very cozy. I'm pretty sure they are working as a sleep cue now as well.
Good quality, very warm, well made
They cost a lot

Without arms they are unsuitable for winter we discovered. They get cold shoulders and arms with an armless grobag. We ended up finding alternative brands that have arm insulation, which resulted in a better sleep. Grobag should offer a version with arms, and warn parents that they may be unsuitable for winter.
looks nice
armless which is an issue in winter

My almost 7 month old would kick off sheets and/or blankets within minutes so the grobag has been a wonderful purchase. In our hot Queensland summers I can put it on her and have the fan on without worrying that she is getting too cold. We got the 0.5 TOG 0-6months as she is quite a small bub for her age.
Quite easy to put on, quality materials, bubs sleeps better with it on and I don't worry so much!
Expensive, look for sales!

I have two of them for my son and feel safer with him sleeping in it then with a blanket on him fearing hell kick it over his face. And at the same time know i have got peice of mind that hes warm when its cold weather. I like the little patterns and animals on them and think there really cute.
reliable, inexpansive,

Grobags were the best item i had purchaced for my baby. They are sid safe and on the packet they have a safe sleep guide that advises you of what tog grobag to use for the room temperature (2.5 tog for temps under 20 degrees, 1 tog for 20-23 degrees and 0.5 tog for temps above 23 degrees. It also recomends what to where under the grobag. I purchaced a grobag egg that is a nightlight that displays the room temperate.
safe, advised sleep guide
expencive

The bag is easy to use. It's good that the zip is at the bottom as you can change a diaper while keeping baby warm. Although - if baby wees the bag may get wet. It's easy to wash and dry. We put ours in the dryer and it's fine. The white colour is a downside as our baby has regurge and so is stained around the chin/shoulder area.
Easy to use and clean; keeps baby warm even if he moves around
A dark colour may prevent unsightly stains

We have now got a couple of different types of Sleeping bags for our baby but the Grobag is the most essential and the one we use the most. It has recognised sllep safety benefits from the SIDS foundation which is important when, as a new parent, how to best swadle/wrap/sleep your baby for sleep.Grobag is also great because you dont need to purchase as many additional blankets. The different temperature ratings or TOG is an easy way to choose the level of warmth required in each individual room in the house. Perfect!
Expensive but worth the investment. You can get different sizes. Can be used in the car seat/ capsule
Hard to get babies arms out of the bag

I love these sleeping bags, have tried a few other brands but nothing compares to the quality and durability of grobags. I have 6 in different TOG's for my daughter who has just turned 1. She has been sleeping in them since 5 months old. It keeps her snug and protected, and is an awesome "prompt" that is bed time, and she goes to sleep with no fuss. I know that she will get a great night sleep, without getting cold due to not being covered.
Different TOG ratings and materials used, quality of workmanship, cute designs and the fact that it helps with following safe sleeping guidelines for lowering the riskof SIDS

We were lucky enough to have been given 2 of these for our daughter - a very lightweight bag for Summer, and a thicker bag for Winter.
They are fantastic - our daughter is a wriggly sleeper and always kicked her blankets off - but now she has no choice but to stay cosy!!
The designs are lovely, the fabric is a much better quality than others on the market, and they do wash well.
Having said that, I don't think we'd have 2 of them if they weren't given to us as they are very expensive, especially since most babies will grow out of them quickly...
Great design, good quality fabric, come in a variey of thicknesses for different seasons
Expensive