YTickLabel Rotate and 3D plots

I have some data and wish to plot it using surf.m eg

mat = randn(100,5);
surf(mat)

I can label the 3 axis of my plot and set them to show the values i want, as per usual. great.

I now notice that the y-axis looks clustered and so would like to rotate the labels. In the past I have used one of the many excellent functions on the file exchange (eg http://www.mathworks.com/matlabcentral/fileexchange/3486-xticklabelrotate) however these only work for rotating the x-label.

I dont have the time/ability/inclination to write my own version for the y-label.

any suggestions? Have I missed something obvious? Anyone know of any existing code to do this for me which I havent been able to find?

thank you