Thanks so much! Yes I agree ..and to be honest I very reluctantly let her cry as I feel it is cruel but Dad was adamant we give it a go as nothing else was working! We do feel awful now that we even did it

I do think that her routine is less structured since creche and it could be the problem but she also seems to be shifting from 2 - 1 naps in there the last few weeks (on and off)
Routine at home is as follows (she is home Sat/Sun & mon)
Wake: 6-6.30am
Bottle: 7floz - 6.45am
Breakfast: Porride/weetabix/cereal - 8.15/8.30am
Snack: (not always) 9.15am
Nap 1: 9.30/9.45am - 10.15 (up to 2 weeks ago this was 9.30-11)!!
Lunch: 11.30/11.45am - Lamb stew or meatballs & spaghetti or chicken stew or chicken & veg - eats well!

Snack: 1.30pm - cracquotte or cream cracker or yoghurt or fruit
Bottle: 4floz - 2.15pm
Nap 2: 2.30pm - 3.15/3.30pm (depending on morning nap)
Dinner: 5.30pm Soup or waffles or toast and spaghetti hoops or mash & veg
Pyjamas on 6.30pm
Story/colouring
Bottle: 7.15pm - 7floz
Bed: 7.30pm
Creche routine:
Similar to home but the naps vary - she does not seem to want a morning nap there lately and sleeps after her lunch from approx 12 - 1.15/1.30
(Not long enough I feel since she gets up so early!?)
Also her dinner is slightly later in the week - 5.45pm-6pm
Regarding how she sleeps nap wise - usually goes down for her morning nap no problem at home, gets tired around 9.45/10 and sleeps easily and quickly without much interaction - but lately wakes after 40 mins and wont go back asleep
Nap 2 is usally out and about or in her buggy and weirdly she sleeps longer in her buggy than the cot! Ive thought of bringing the buggy upstairs some nights!

Sorry this is a long post! thanks for the help so far!!