Caveats:
No I don't have bed/sofa/floor/camping space left as we've got the nipper's 2nd birthday the day after so it's all taken by my olds.
There are a couple of Travelinn places up the road -
http://www.travelinn.co.uk/ and search for Chelmsford. Both of these are close as they're either side of the A12, but Springfield is closer. Alternatively any hotel/B&B in Chelmsford should do as it won't be more than a tenner for a taxi.
Parking for bikes isn't a problem. There may not be room to garage them all overnight, but it's pretty safe round our way if you do want to leave it at mine instead of in a hotel carpark.