that it is such a restful place. If your energy level is not high enough to match your now quite deep concentration, you are likely to fall asleep in the fourth jhāna. If this happens, when you wake up, it probably is going to be a better use of your time to immediately switch to doing an insight practice rather than persisting with doing something you don’t have the energy for. It may even be necessary to apply some of the antidotes to sloth and torpor mentioned on the web page “Abandoning the Five Hindrances” at http://rc.leighb.com/more/Abandoning_the_Five_Hindrances.htm.