
Don't waste your money on snugglesafe or anything that relies on you needing to top up the heat.
Hot water bottles, stuff you warm in the microwave etc is not a constant heat. Electric heatpads are constant (and are not hot to the touch), as it is the weight of a pup that generates the correct heat for that pup. I have reared 2-3oz pups using the constant temperature that you get and would never use anything else. I did start with the vinyl rubbish, but gave that away.
The flexiguard petnap is perfect and indestructible. I love them, and I've tried everything (including overhead expensive heat lamps.)
If your litter is actually due in just under 2 weeks, you needed to order before now! She could whelp from day 56.
Check out how good the flexiguard is
http://www.petnap.co.uk/acatalog/pet_heat_pads.html#a30