DD is 7 months and won't sleep for more than half an hour in the evening (often waking every 15 mins). I've posted before when she was younger but then I put it down to cluster feeding. Now I'm not so sure it's that, plus she's feeding (or sucking anyway) alot more during the night than she has done since about 4 weeks old (we co-sleep.)
For the first six months we mostly kept her in the living room with us in the eves to save me spending hours alone in a cold dark room with no food or telly (DD is bf to sleep in the evenings and with each wakening - so DP can't soothe her or get her to sleep - the sling used to work for him but now only I will do) recently we've started putting her down again in the bedroom because she's too alert now to be expected not to be distracted by telly and stuff going on. But it does mean I'm spending a lot of time in a cold dark room and it's really draining - I'm getting burnt out now and that's not good for any of us.
I had always gone with the flow as I'm basically a bit of an AP type, and also I thought (and people said) this would start to settle down when she started solids. But if anything it's got worse. (Admittedly she's got lots going on at the mo with first tooth and other milestones in the making.)
Neither DP or I are up for controlled crying (and DD would cry something if we tried) but are now very keen to try and either help her sleep through for longer periods (2 hours would be wonderful) or so that DP could take on some of the getting her to sleep. We've just bought the Sears Sleep Book and also the No Cry Sleep Solution - not immediately convinced they hold the answers. Other thoughts:
Try a dummy in case it's comfort sucking (don't think she'd go for it tho - really don't)
Try cranial osteopathy
Try again with bottled expressed milk
Try giving her a bottle of formula at bedtime
Sorry this is so long, but would love to hear your thoughts.
PS Napwise she sleeps regularly but always in sling, buggy , car seat or lap.