I've co-slept since 3 months as my dd was a terrible sleeper. Initially I found her all wriggly but after a couple of weeks I actually loved having her in bed and didn't sleep that well if she wasn't there!! I never thought I would co-sleep before I had a baby (SIL co-slept for years and I secretly though it was a bit strange - although he is now 8 and still co-sleeping!) However, when I started to do it - just to try and get a bit more sleep - it felt natural and lovely.
I've always put her to bed in her own cot at 7pm and when she woke - I would put her into bed with me - feed her (and myself!) back to sleep.
Over the months she went longer and longer into the night before waking for a feed. I often found myself going to bed and going get her from her cot to take her to bed with me!!
She's now 14 months and sleeps in her cot - if she wakes at all - I still bring her straight in with me. Often she will sleep until about 5am - and then come in with us and sleep until 7am.
She's not at all spoilt and clingy.. infact she's really independant. When I take her to toddler group she's off away from me like a shot. I work four days a week and she's looked after 2 days by my mum and 2 days by my dh - she doesn't seem to miss me at all - happily gives me a cheery wave as I leave the house in the morning.
Enjoy co-sleeping - it's fab and natural. Our babies are such nice warm snuggly little things. Oh, yes - they sleep better if their in with us too! Which is a BIG bonus in my eyes.
If family members are going to be negative (family members are ALWAYS negative about something you do with your child ie. breast/bottle feeding, weaning, discipline etc etc. ) just don't tell them - or lie .