The Malmaison hotels have never been marketed towards children. I've never seen a review of in respect to how they cope with younger guests and what facilities are on offer for them.
Despite the dark, almost gothic interior of Manchester Mal, it's definitely surprisingly child friendly. There are no play areas or chicken nuggets but the staff do go out of their way to make sure that children are welcome and well seen to.
Cots are available free of charge (better than most hotels I've stayed in which charge at least £10), and so are junior roll away beds at no extra cost. Bedding is included and 'roll away bed' children get their own mini bottles of malmaison toiletries. Obviously these aren't provided for babies in cots because it isn't suitable for their skin. Extra towels for children are provided too.
All rooms have a DVD and good quality TV which is excellent to keep the children quiet whilst you get ready for dinner.
The hotel serves smaller portions of adult dishes for children, both in the bar and in the dining room. There are lift facilities to all floors and highchairs are available.
Children are welcome to take whatever they want from the breakfast bar and the staff don't hesitate to rustle up beans on toast or other childhood staples. There's even egg and soldiers on the adults menu!
If you're fancying a weekend away without the children this is the place to be too - they do romantic packages for parents including chocolate dipped strawberries, champers and spa treatments. Despite how welcoming they are of children, you are never aware of it really, the hotel does a good job of ensuring that there is a perfect balance between us oldies and children. Staff are more than helpful and will often give you a lift with buggies and allow you to leave any heavy baggage behind reception.