Any Cadbury choc now is rank and has been for ages! A box of chocs used to be a treat, it's now really hard to find decent ones without spending a fortune! There's no "middle range" now there's cheap crap like milk tray or Uber expensive options
I agree, rookie error not making sure you have food and drink to hand before lying or sitting with baby anywhere and therefore trapping yourself in the early days. 
I used to use an old squash bottle to have made up squash in to drink from through the day while then husband was at work, bf is thirsty work! But even if not bf just makes life easier.
Also snacks, nothing wrong with less healthy ones like choc if that's what you fancy but depending on how you are with bowel movements at the moment (bf can really dry you out) you might want to include some prepped/easy to eat fruit, veg and dried fruit. There's a reason grapes are a traditional thing to take to immobile hospital patients inc new mums, they keep things moving, I ate a lot of choc covered raisins
Congratulations by the way 

@JamieLeeCurtains terrys now owned by same as Cadbury's I used to love all gold they're now shit too!
I sometimes find rank chocolate is ok if melted and made into chocolate krispies. the rank palm oil shit doesn't melt! It turns into crumbly putty like texture bit like play doh (and play doh probably tastes better!)
Frankly they shouldn't be allowed to call it chocolate!
My friend uses a small beer fridge as her bedside table. It's full of snacks and has her teasmade on top. excellent planning!
why doesn't everyone stop buying Cadburys? people who aren't choc eaters (yes they exist weirdos ) buy it for others, youngsters who don't remember how it used to be are fooled, some just have poor taste skills/ability
They've managed to make Cadbury more profitable on paper BUT that's largely been due to selling outside the uk and streamlining manufacture so that they have reduced overheads.
In real life I've found very few people know what happened and even that the recipe changed. A friend of mine who now lives overseas was home recently and treated herself to a large bar of dairy milk for her and her son, she ended up apologising to her son for building his hopes up as it was rotten and certainly not what she remembered from her own childhood. We have a lot of friends in common and only a few inc myself were aware of what had happened both in terms of changing the product and screwing over the Uk staff.