Rashi on Genesis 49:33/רש"י על בראשית מ״ט:ל״ג

1ויאסף רגליו means HE BROUGHT HIS FEET into the bed. (Rashi tells us that ויאסף signifies הכניס, he brought in).

2ויגוע AND HE EXPIRED — but the word death is not mentioned in his case, and our Teachers therefore said: (Taanit 5b) “Jacob, our father, is not dead”.