If you want to know where it is most of the time, and not have to frighten it by churning around for it all the time, and also make it feel good and secure, which is EXTREMELY important to the well being of small hatchlings, house it in a SMALL shoebox sized plastic container with plenty of air holes(1/8th" diameter) that is VERY secure, and I do mean VERY secure!, then put only approx. 1/4" to 3/8" max. of aspen bedding, or even just newspaper. Then put a small hide box or two(anything small, shallow, and dark) with notches cut at the rim, and put upside down for it to crawl in and out of, i.e. tiny cardboard, or plastic container's work fine.
Be sure to keep the temp at around 80-84 degrees, this will aid in properly digesting the pinkies and won't make the tiny hatchling regurgitate from the prey putrifying(rotting) in it's stomach. One reminder,...DO NOT guess at the temps!, put a reliable thermometer down on the substrate, and even check the hide box temps to ensure it is right, or else the snake will not stay in them, and will end up cruising the cage looking for a place to go, and will make them more reluctant to eat as well.
I cannot stress enough how important proper temperature is to a hatchling, and these other things too for that matter. A small fragile hatchling that is allowed to regurgitate from being kept to cool can easily lead to it's death, as the regurging has a "domino" effect, and the previous regurge keeps the following meals from ever getting digested either, and it can have a BAD oucome in VERY short order, so the best thing is to NEVER let this happen.
good luck with your new snake!
~Doug
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"Better to be silent and thought a fool, than to open mouth and remove any doubt!"