There is a possibility to make an overnight stop at Pico de la Cruz where is great place to sleep. I can highly recommend this place, especially for watching the clearest sky in Europe (I haven´t seen Milky Way before!) Didn´t want to sleep as per the clear sky with thousands of stars even it was frezing up there! Can´t express the next day sun rise as this is was one of the best I have ever seen! Nicer than one on top of Spain (Pico del Teide).