This was hands down our best buy.
Are you going to breastfeed? If so, this can keep you sane, honest! (Might work too if you're not BFing, I don't know)
We got [[
www.amazon.de/FabiMax-Beistellbett-Babymax-Matratze-Auswahl/dp/B0053FIPAY/ref=pd_sim_by_1?ie=UTF8&refRID=0G9MB7Q4M0JKHX501G6T this three sided cot from German Amazon]]. The cot attaches to the side of your bed.
If your baby's in a separate cot, you get much less sleep than if you use a 3-sided one IME.
This is because, your baby has to get your attention when they need feeding at night (possibly by crying, so they are awake). Then you need to wake yourself up, go to the cot, get the baby, perhaps feed sitting by the cot, or bring the baby back into bed with you. You're totally awake, the baby's awake. You feed the baby, then settle them back in their cot (this could be instant or take a loooong time). Then you go back to sleep. And repeat, possibly every hour, some nights. This is what we did, with DC1, when we had an ordinary crib. Many babies really want to be near their mother, not just milk and will keep waking up if they're not near you.
With the three-sided cot, the baby is close to you, this will reduce night wakings for a lot of babies, which equals more sleep for you. Also, when they do wake for feeding, you're right there. Neither you nor the baby really needs to wake up much to feed. You can reach over, the baby can latch on, and you can feed your baby lying down, without either of you having to wake up too much. When you're done, you just slide your baby back over.
You can get three sided cots in the UK, but they cost about £250+.
The one from Amazon is just over £100 including delivery from Germany.
To use German Amazon, use Google Chrome to look at the website, and it automatically translates everything for you. You can use your usual (e.g. UK) Amazon account with the German site, it works fine.
3 sided cot linky