Because DC1 is heavily built on the Segmented sleep habits, naturally Segmented (non-reducing) individuals can learn to add a daytime nap around the hours they are drowsy. This would effectively create a non-reducing DC1 variant. Despite this, adaptation success is very rare, and mostly rely on the naturally Segmented tendency coupled with the circadian nadir around noon-afternoon to take the nap accordingly. It may also be redundant to a lot of people, because non-reducing Segmented already provides all the necessary sleep in the cores, and does not require taking any daytime naps.