Thanks for all the advice. I finally had a MCHN come today and they weighed Maya and she's not put on much weight at all. So they've advised the same thing as you guys, that I need to up the feeds during the day. I've found that she's naturally started wanting more feeds anyway, whereas she seemed to just want to sleep a lot more before. Yesterday she had 8 feeds in 24 hours. So I'll continue with at least 8 feeds in a 24 hour period and hopefully at her next weigh (next Tuesday) she'll have gained more weight!